<template>
	<view class="login-container">
	  <uni-icons type="contact-filled" size="100" color="#AFAFAF"></uni-icons>
    <button type="primary" class="btn-login" open-type="getUserInfo" @getuserinfo="getUserInfo">一键登录</button>
    <text class="tips-text">登录后享受更多权益</text>
	</view>
</template>

<script>
  import {mapMutations,mapState} from 'vuex'
  
	export default {
		data() {
			return {
				
			};
		},
    computed:{
      ...mapState('m_user',['redirectInfo'])
    },
    methods:{
      ...mapMutations('m_user',['updateUserInfo','updateToken','updateRedirectInfo']),
      // 用户授权之后 获取用户的基本信息
      getUserInfo(e){
        // 判断是否获取用户信息成功
          if (e.detail.errMsg === 'getUserInfo:fail auth deny') return uni.$showMsg('您取消了登录授权！')
        
        // 获取用户信息成功， e.detail.userInfo 就是用户的基本信息
          console.log(e.detail.userInfo)
          
          this.updateUserInfo(e.detail.userInfo)
          
          this.getToken(e.detail)
      },
      async getToken(info){
        // 获取code值
        const [err,res] = await uni.login().catch(err => err)
        
        if(err || res.errMsg !== 'login:ok') return uni.$showMsg('登录失败！')
        
        // 准备参数
        const query = {
            code: res.code,
            encryptedData: info.encryptedData,
            iv: info.iv,
            rawData: info.rawData,
            signature: info.signature
          }
        const {data:loginResult} = await uni.$http.post('/api/public/v1/users/wxlogin',query)
        
       // 登录接口有限制，自己写一个数据-模拟登录
        // if(loginResult.meta.status !== 200) return uni.$showMsg('登录失败')
        // uni.$showMsg('登录成功')
        const token = "Bearer eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJ1aWQiOjEyLCJpYXQiOjE1MjU0MDIyMjMsImV4cCI6MTUyNTQ4ODYyM30.g-4GtEQNPwT_Xs0Pq7Lrco_9DfHQQsBiOKZerkO-O-o"
        
        this.updateToken(token)
        this.navigateBack()
      },
      navigateBack(){
        if(this.redirectInfo && this.redirectInfo.openType === 'switchTab'){
          uni.switchTab({
            url:this.redirectInfo.from,
            complete:() =>{
              this.updateRedirectInfo(null)
            }
          })
        }
      }
    }
	}
</script>

<style lang="scss">
.login-container{
  height: 750rpx;
  background-color: #F8F8F8;
  display: flex;
  flex-direction: column; 
  justify-content: center;
  align-items: center;
  position: relative;
  overflow: hidden;
   
   &::after{
    content: ' ';
    display: block;
    width: 100%;
    height: 40px;
    background-color: white;
    position: absolute;
    bottom: 0;
    left: 0;
    border-radius: 100%;
    transform: translateY(50%);
    
   }
  .btn-login{
    width: 90%;
    border-radius: 100px;
    margin: 15px 0;
    background-color: #C00000;
    
  }
  
  .tips-text{
    font-size: 12px;
    color: gray;
  }
}
</style>
